Introduction of energy saving measures in Krasnodar Vodokanal

Summary

The aspects of efficient energy consumption by water and wastewater utilities are of primary importance. In order to reduce the energy consumption constituent of the production costs certain energy saving measures are introduced aiming to the development and improvement of the process technologies, upgrade of equipment and controls. This approach is provided by the development of market relations, deficiency of energy resources and, consequently, by the energy price increase. The energy consumption pattern of an enterprise is determined by the type of products manufactured or services rendered. The principle procedure of an energy audit of the pumping stations operated by Kransnodar Vodokanal; the basic technical solutions on the water supply upgrade are presented alongside with the comparison of the calculated and actual cost savings resulted from the introduction of the energy saving measures.

Key words

water supply system , pumping station , power saving , energy audit , frequency regulation

Energy audit of pumps in industrial and municipal systems and labeling of the operational efficiency: systematic approach
(part 1)

Summary

On the basis of a systematic approach, uniform criteria have been developed for estimating the energy efficiency of pumps in real industrial (municipal) systems from the standpoint of environmentally friendly operation in a low-carbon economy. At the same time, the integrated approach of pump manufacturers in tests and designers of real systems with pumps in the process of research and optimization calculations was taken into account. An example is given of estimating the eco-friendly energy efficient operation of a variable-load pump in a municipal system with a time dependent static head component. An example of a typical report of an energy survey is presented based on: the estimation developed for pumps by energy labelling classes for operating conditions in the system, with arbitrary load profiles; a computable structure of the pump design cycle modes with determining the ratio of energy-efficient and energy-consuming operation modes, excess demand energy and taking into account the negative impact on the environment in the form of greenhouse gas emissions in CO2-equivalent. An approach to improving the incentive mechanism for pump operators for the implementation of energy service contracts to reduce the energy intensity of industrial and communal technological processes is considered.

Key words

energy audit , centrifugal pump , system approach , pump load profile , Eco-Efficient Index , labeling of the eco-efficient energy consumption , carbon unit